John said:
> It would be nice if there as an unobtrusive way to let the user know
though - such as a trim widget that gets an error overlay added.

this is similar to the path I am exploring.
To clarify - you'll never get told of an update if you don't have the pref
on.  The pref guides how often we check, whether we download before
notifying, etc.  But if you have the pref on, I was thinking of:

- for updates with no problem - notify the user with the usual popup and
status bar affordance
- for updates with a failed plan - the status bar affordance has a red X,
the popup is worded differently (the trick is the wording, a way to inform
without scaring, and to make sure the user knows that clicking the popup
just lets them browse the updates, nothing bad will happen automatically).

Either case, clicking on the popup gets you the update dialog, and in the
second case it has an error condition (bad as a general rule, but more
informative than not telling them).

Are you suggesting that you'd rather see the update icon/red X without the
popup in the second case?  Interesting....

For the manual checking for updates, install:
Today we report the error if the plan fails.   I was considering reporting
the error with an option to "launch the wizard anyway" (and a toggle to
remember the pref).

Pascal said:
>don't let the user click the install button until the proper things have
>been selected. This means that the validation is done as the user selects
>and unselects things in the UI.

This is what we do once inside an update or install wizard (as you check
and uncheck items, the plan is recomputed).
But if what you mean is to compute the plan while making selections in the
"available features page," I don't think that really helps.  It is
expensive, and noisy (you have to show progress somewhere).  And if we just
gray the update/install button, there is still all the same questions about
how to show what's wrong.

So my thinking is that the ability to launch the wizard anyway gives the
user a place to try checking/unchecking things and recomputing the plan,
rather than going back and starting over.  And it keeps the basic workflow
of browsing for what's available less cluttered by not doing full
resolution all the time.

susan


                                                                                
                                                              
                      John Arthorne                                             
                                                              
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                      Sent by:                    Subject:  Re: [equinox-dev] 
[prov] How best to help the user through  incompatible/bad      
                      equinox-dev-bounces@         provisioning plans           
                                                              
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                      02/13/2008 07:39 AM                                       
                                                              
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This is definitely a tricky problem. A likely scenario is that they have
installed some additional plug-in, and that plug-in has a constraint that
is not compatible with constraints in the updates (The extra plugin
requires version 1 of "foo", and the update requires version 2). The
problem is, our solver might not be able to come up with a simple
explanation that makes any sense to the user (they likely know little about
the various IUs they have installed).  Until we can come up with an
explanation that allows us to guide the user through correcting the
problem, I would opt for keeping quiet in the automatic update case (just
log it). Personally, it drives me crazy when applications have uninvited
and unsuppressible modal popup dialogs about updates. If the update can
proceed silently it's fine. If I explicitly asked for an update, it's ok to
prompt me about problems. But if I didn't ask for it, don't bother me about
it. It would be nice if there as an unobtrusive way to let the user know
though - such as a trim widget that gets an error overlay added.  In the
updates dialog, we would presumably still show the updates, and the user
can try the update from there if they want to.

John



                                                                       
 Susan Franklin McCourt                                                
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                                                                   Subject
 02/12/2008 05:33 PM                  [equinox-dev] [prov] How best to 
                                      help the user through            
                                      incompatible/bad provisioning plans
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Hi, everyone.
I've been struggling with how to handle the case where the user has
automatic updates on, we find updates, but the resulting provisioning plan
for those updates is not OK. Meaning, there is some
incompatibility/problem. Do we tell the user? Do we let them try to update
anyway? etc. etc...

This issue also applies to provisioning actions the user selects. They
select A, B, C and say "Install..." but the resolver can't find a plan that
satisfies everything. What then? We currently just report the (often
cryptic) error. Should we let them try anyway, or at least open the wizard
and let them check/uncheck things until they get a good solution?

If you have any thoughts in this area, could you please read and respond in
this bug?
https://bugs.eclipse.org/bugs/show_bug.cgi?id=217927

thanks,
susan_______________________________________________
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